the idea behind it was is a .22 cak round moving extremely fast has the same energy as a 30 caliber round moving slower.
same size as an AK-47. unlike the ak-47 which shoots 30 caliber 7.62 x 39 rounds, the ak-74 shoots 22 caliber 5.45x39 rds
uses a 5.45 x39mm bullet smaller then its predecessor the
7.62x39mm the main reason of the difference is the smaller
bullet will tumble in the body aka F@*KING AWESOME GUN